I have heard a rumor that using Mop and Glow floor wax on the exterior roof of an RV will stop those ugly white streaks from appearing on the sides. Does anyone have any experience with this? Are there any unwanted side effects for using it? Let me know if you no of any other remedies for this annoying problem. Looking forward to hearing everyone's feedback. Thanks. Jeff

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American Coach Tradition 2006
No toad, just 2 bicycles
12 year old cocker spaniel "Peanut"

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I find that I have to clean the roof a couple of times a year. I use a high pressure washer to clean the roof. Then I use a sponge mop to apply the Mop and Glow. I don't let any run down onto the sidewalls.

I did my roof a few weeks ago with Mop n Glo hoping to stop the white chalk runoff. It has worked so far. I put NuFinish wax on the painted section. I am waiting on a good rain to see what happens. Tthe dew runoff has not shown any white lines yet.

Never tried mop n glow but just did 5 coats of ZEP high traffic floor wax on mine. I scrubbed it first then used wife's swiffer mop and pads. Poured it on full strength. First two coats looked bad but then started looking very good. ~$16.00 at HD. Still have about 3 qts left out of the gallon. I was told to just do 2 coats every year? So far no streaks in RGV in S. Trxas.

I suggest using Aerospace 303. The white streaks are caused by the rubber roof breaking down from oxidation. This product has UV protection and will protect the rubber material. Nothing will stop the rubber roof from aging but this will help. It's also good to use on your tire sidewalls that are exposed to the sun. It has no petroleum distillates and will not damage the rubber.

I suggest using Aerospace 303. The white streaks are caused by the rubber roof breaking down from oxidation. This product has UV protection and will protect the rubber material. Nothing will stop the rubber roof from aging but this will help. It's also good to use on your tire sidewalls that are exposed to the sun. It has no petroleum distillates and will not damage the rubber.

As you know the fiberglass roof looses it's shine and then get black roof mold which causes black streaks. I tried Mop and glow but prefer to use Pledge clear floor wax. Once the roof is cleaned with bleach and detergent, rinse well and let it dry.

Go to HD and find the micro fiber window cleaner to put on the end of the pole. pick a day when it is not to windy, is cloudy, and not to close to dusk as dew will form on the uncured finish. You don't want that to happen.

simply pore an amount on a spot of the roof and spread it with the microfiber attachment. work fast enough so that the mating areas do not dry while spread the new finish. If you put you first coat on mid morning you should be able to get at least two more coats. refresh the finish every few months.

Yeah, but not for long. Time depends on number of coats used, weather, rate of roof oxidation, etc., but the wax really isn't intended for outdoor use and doesn't last a long time. Any wax would do the same, but Mop N Glo is cheap and easy to use.

I used it on my '04 Tradition (same fiberglass roof as yours) and had to re-do it every 6 weeks (the coach was outdoors continuously. I finally solved the chalking problem in a more permanent manner by re-painting the white roof with Dicor Fiberglass Roof Coating. It wasn't much more difficult that using the Mop & Glo and have had no chalky residue for the past 10 months.

My white fiberglass roof is gel coated, but not painted. The gel coat oxidizes, producing the white powder. When it rains the white powder is carried off the roof, and it runs down the sides of the coach, producing the white streaks.

When I wash the roof with the hi pressure washer, I use a little bit of RV wash and wax, or car wash soap and then rinse. This leaves the roof clean with all oxidation gone. I use a sponge mop to spread the Mop and Glow. I simply squirt the Mop and Glow directly onto the roof and spread it around with the sponge mop.

It takes me about 2 hours to do the hi pressure wash cleaning.

The entire Mop and Glow application takes about 20 minutes for the entire roof.

If I do this twice a year, I never have any white streaks running down the sides of the coach.

I guess if I painted the roof it might help, but I haven't decided if I want to do that.